Compound foam cement heat preserving material produced by using caustic slag cement and preparation method thereof

Abstract

The invention discloses a compound foam cement heat preserving material produced by using caustic slag cement and a preparation method thereof. The compound foam cement heat preserving material comprises the following components in parts by weight: 40-50 parts of caustic slag cement, 3.0-6.0 parts of a thickening time control agent, 2.0-5.0 parts of a water repellent, 0.15-0.25 part of anti-cracking fiber, 30-40 parts of water and 5-10 parts of a compound foaming agent. The preparation method of the compound foam cement heat preserving material comprises the following steps of: weighing each component; adding the water, thickening time control agent, water repellent and anti-cracking fiber, stirring for 1-2 minutes, adding caustic slag cement, stirring for 2-3 minutes, adding the compound foaming agent, and stirring for 10-20 seconds; and putting slurry into a mold, standing for 2-6 hours, performing mold stripping, cutting and packaging 24 hours later, and curing for 28 days. The compound foam cement heat preserving material has excellent properties of high strength, low hydration heat, leakage resistance, corrosion resistance and the like while an original heat preserving material is kept, a preparation process is simple, and the cost is low.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a composite foamed cement insulation material produced with alkali slag cement and a preparation method thereof. Background technique [0002] With the increase of major fire accidents associated with wall insulation materials, the field of building science proposes to adopt methods such as fire isolation and no cavity in the external wall insulation system, which can solve the problem of easy flame propagation and diffusion in the combustion characteristics of organic insulation materials Defects, so as to avoid fire accidents caused by flame spread and spread caused by flammable insulation materials. However, the research on fire-proof structure cannot solve the temperature resistance and flame resistance of organic thermal insulation materials compounded on the wall structure, and cannot solve the problem that organic thermal insulation materials release smoke and poisonous g...

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Problems solved by technology

Among the inorganic non-combustible materials, the price of foam glass and foam ceramics is relatively high; although the price of fiber insulation materials such as rock wool and mineral wool is slightly lower, they are harmful to human body during production and use; the water absorption rate of expanded perlite and expanded vermiculite also higher

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